code: def __init__(self) -> None:
      self.keras = _KerasStub()
  
imports: import logging
  import numpy
  import os
  import sys
  from typing import Any, Optional
  from ray.rllib.utils.annotations import DeveloperAPI, PublicAPI
  from ray.rllib.utils.deprecation import Deprecated
  from ray.rllib.utils.typing import TensorShape, TensorType
label_desc: Use image node_id 1 to create a new _TFStub object  with example: obj = _TFStub()